POWER OF ATTORNEY


     Know all by these presents, that the undersigned hereby constitute and
appoint each of Christopher C. Siffert and Billy F. Mitcham, Jr., or either of
them signing singly, and with full power of substitution, the undersigned's
true and lawful attorney-in-fact to:

          (1) prepare, execute in the undersigned's name and on the
     undersigned's behalf, and submit to the U.S. Securities and Exchange
     Commission (the "SEC") a Form ID, including amendments thereto, and any
     other documents necessary or appropriate to obtain codes and passwords
     enabling the undersigned to make electronic filings with the SEC of
     reports required by Section 16(a) of the Securities Exchange Act of 1934
     or any rule or regulation of the SEC;

          (2) execute for and on behalf of the undersigned, in the
     undersigned's capacity as an officer and/or director of Mitcham
     Industries, Inc. (the "Company"), Forms 3, 4, and 5 in accordance with
     Section 16(a) of the Securities Exchange Act of 1934 and the rules
     thereunder;

          (3) do and perform any and all acts for and on behalf of the
     undersigned which may be necessary or desirable to complete and execute
     any such Form 3, 4, or 5, complete and execute any amendment or amendments
     thereto, and timely file such form with the SEC and any stock exchange or
     similar authority; and

          (4) take any other action of any type whatsoever in connection with
     the foregoing which, in the opinion of such attorney-in-fact, may be of
     benefit to, in the best interest of, or legally required by, the
     undersigned, it being understood that the documents executed by such
     attorney-in-fact on behalf of the undersigned pursuant to this Power of
     Attorney shall be in such form and shall contain such terms and conditions
     as such attorney-in-fact may approve in such attorney-in-fact's
     discretion.

     The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934.

     This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

     IN WITNESS WHEREOF, the undersigned have caused this Power of Attorney to
be executed as of this 9th day of December, 2004.


                                                   MICHAEL A. PUGH
                                                -----------------------
                                                   Michael A. Pugh

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